This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

How to configure FREERTOS Tasks for the following description

Hi Everyone

My requirements are as follows

1. I am running 4 tasks using free rtos in which one measures the ADC , 2nd sends the adc data over BLE and 3rd check if the button is pressed or not and 4th sends the ADC data to LORA.

2. All my 4 tasks are running perfectly so far.

But i would like to have this feature in my code.

Whenever i press the button , the controller should come out of sleep mode and run the other 2 tasks of measuring adc and sending data over BLE.

As long as button is in low state(NOT PRESSED) ,the controller should remain in sleep mode and should not do anything.

My questions are

1. How to put the nrf52840 to Sleep mode ?

2. How to achieve the above described theory using FREERTOS Tasks.

3. Can i use mutexes and sempahores for the above theory?

4. What are the available Sleep modes on nrf52840.?

5. What are the functions to call to put nrf52840 to sleep modes?

Parents Reply
  • Initially, when a nrf52 is powered up it has to read the adc values from the 3 sensors which are connected to it and then start ble advertising and after that transmit the data on BLE and should be power optimized. For this, I have to use FreeRTOS so I started with adding FreeRTOS on ble_app_uart example. In this the I had created the ble advertising task which works well. Then I had merged SAADC example code in this but I am not able to get the ADC reading by defining another task for it.

Children
Related